.pro-container-wrap {
    width: 100%;
    height: 100%;
    padding: 24px;
    background-color: #F5F5F5;
    overflow: auto;
}

.pro-container {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
}


.branch__col:first-of-type > .node-wrapper .pro-card__arrow.left,
.branch__col:last-of-type > .node-wrapper .pro-card__arrow.right {
    visibility: hidden;
}


.branch {
    display: flex;
    justify-content: center;
    position: relative;
    border-top: 2px solid #aaa;
    border-bottom: 2px solid #aaa;
}

.branch__col {
    position: relative;
    padding: 50px 50px 0;
    background: #f5f5f5;
}

.branch__col:first-of-type::before,
.branch__col:first-of-type::after,
.branch__col:last-of-type::before,
.branch__col:last-of-type::after
 {
    content: "";
    height: 3px;
    left: 0;
    position: absolute;
    width: calc(50% - 1px);
    background: #F5F5F5;
}

.branch__col:last-of-type::before,
.branch__col:last-of-type::after {
    right: 0;
    left: unset;
}

.branch__col:first-of-type::before,
.branch__col:last-of-type::before {
    top: -2px;
}

.branch__col:first-of-type::after,
.branch__col:last-of-type::after  {
    bottom: -2px;
}

.branch__col > .branch__centerline {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #aaa;
    left: 50%;
    margin-left: -1px;
    
}

.branch__button {
    height: 32px;
    z-index: 99;
    position: absolute;
    transform: translateY(-50%);
}

.node-wrapper > .append-line,
.branch-wrap > .append-line {
    height: 100px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.append-line::before {
    content: "";
    height: 100%;
    width: 2px;
    background: #aaa;
    position: absolute;
}

.pro-container  .end-dot {
    width: 10px;
    height: 10px;
    margin: auto;
    background: #aaa;
    border-radius: 5px;
}

.candidate-pane {
    width: 220px;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-around;
}

.candidate-pane > .candidate-item {
    text-align: center;
    cursor: pointer;
}
.candidate-pane > .candidate-item:hover > .candidate-item__icon {
    color: #FFF;
    background-color: #479EFF;
}

.candidate-item__icon{
    width: 50px;
    height: 50px;
    font-size: 28px;
    text-align: center;
    border-radius: 25px;
    line-height: 50px;
    color: #479EFF;
    border: 1px solid #eee;
}
.candidate-item__text{
    color: #969696;
    font-size: 12px;
}

.scale-controller {
    position: absolute;
    right: 30px;
    top: 20px;
    z-index: 999;
}
.scale-controller .scale-btn {
    padding: 6px;
    background: #FFF;
    border: 1px solid #eee;
    border-radius: 4px;
}

.scale-controller .scale-text {
    padding: 6px;
    margin-left: 6px;
    margin-right: 6px;
}